Clamp for tie wires



Feb. 12 1924. 1,483,213

- J. R. BULLls CLAMP FOR TIE WIRES Filed March 25, 1923 fw l attozvwgf,

Patented Feb. 12, 1924.

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PATENT oFFlcE.

CLAMP FOI TIE WIRES.

Application ined March 1.9.23. serial No. 627,206.

To all whom t may concer/n.'

Be it known that I, JOHN R. BULLIs, a citizen of the United States, of Winston- Salem, in the county of Forsyth and State of North Carolina, have invented certain new and useful Improvements in Clamps for Tie Wires; and I do hereby declare the following to be a full, clear, and exact description of the invention such as will en able others skilled in the art to which it appertains to make and use the same.

My invention relates to concrete molds andparticularly fto means by which tie capable of clamping a single Wire passed around the column, thus effecting a saving in the cost of form construction.

In the drawings, Figure 1 is a perspective view of a portion of a wall form showing my improved clamp attached to an upright. Figure 2 is a perspective view of a portion of a column form showing my improved device clamping a single wire around the form. Figure 3 is a sectional view with the clamp used in connection with a form about an I-beam. Figure 4 is a view in front elevation.

In the use of my device with wall forms, the tie wire A is passed from the upright B, see Fig. 1, through the sheathing on one side of the wall space to and through the com" plementary sheathing on the other side and then around the upright C and back in parallelism to the point of beginning where the two ends of the wire are engaged by the clamp. This clamp is preferably of cast metal and includes a circular base l having a neck 2 projecting therefrom and a head 3 preferably rectangular in cross section to provide gripping surfaces for a wrench or other tool. That portion of the head 3 immediately adjacent the neck is outwardly flared to act as a stop in the application of the wrench and prevent contact between the latter and the tie wires. Extending transversely through the neck 2 is an opening 4 to receive the ends of the tie wire, these ends being passed through* the opening iny opposite directions, as clearly shown in Fig. 4.

In the use of my improved clamp, the tie wi `e is placed as hereinb-efore described with its ends inserted in the opening of the clamp. A, wrench is then applied to the head 3 and the clamp turned so as to cause a binding of the wire about the wall uprights or the column form or the Lbeam. This turning of the clamp, as will be apparent, winds the wire about the neck 2, the base l and flared portion of the head acting as spool heads to retain the wire in position. Vhen the desired tension has been got the clamp is anchored by driving nails 5 through the openings 6 in the base l.

As shown in Fig. 2, instead of extending a wire from one hatten to that on the other side of the column form and back which requires a number of wires arranged at right angles to each other, to secure the necessary strength, I employ ysingle wires encircling the column form and secured at a single point by my clamp.

In Fig. 3 I have shown the use of my clamp in connection with covering an I-beam with concrete. It has formerly been the custom to place the tie wire used with this class of work with its ends upstanding and to then bend them over the I-beam, but difficulty is encountered in bending the wires about the flange of the beam because of the little space between the forms and the flange. My clamp permits the use of the tie wire in such. a way as to avoid this trouble, the wires extending downwardly and being fastened beneath the forms.

I claim as my invention:

l. A clamp for tie wires including a flat base for floating Contact with a support, a part projecting from said base and formed to receive the ends of a tie wire, and means for turning said clamp.

2. In combination with a support, of a clamp for tie wires about the support, including a flat base having floating contact with the support, a neck projecting outwardly from said base and formed to receive the ends of a tie wire, and a portion connected with said neck for turning said clamp.

3. A clamp for tie wires including a broad flat, floating base having means to permit.

anchoring it against turning, I axnecklprejecting froni said hase and havingI a transiferse opening therein to receive the ends of a tie wire, an angular head on said neck for application of a tool to turn said clamp'7 vand means for anchoring said clamp.

4. A clamp Jfor tie Wires including" a iiat floating' basel having openings to permitthe passage of nails, a neck projecting from said base and having a transverse openingtherethrough to y'receive the ends oratie wire, an angular head on saidineck for application of aftool. to turn said clamp, that portion of flared.

5. In combination with a support and atie therefor, of a Clamp for the ends of the -tie including abase floating-ly engaging the support, and an integral part extending` out- Wardly from the base and having the tie endsconnected thereto and extending in opposite directions therefrom, said tie serving to hold the base Aseated onthe support.

Intestimony whereof Ihave signedthis specification.

JOHN R. BULTJIS. 

